405137-19-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 405137-19-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,5,1,3 and 7 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 405137-19:
(8*4)+(7*0)+(6*5)+(5*1)+(4*3)+(3*7)+(2*1)+(1*9)=111
111 % 10 = 1
So 405137-19-1 is a valid CAS Registry Number.